Nissan X-Trail 32. Manual - part 938

DIAGNOSIS SYSTEM (ECM)

EC-881

< SYSTEM DESCRIPTION >

[R9M]

C

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EC

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ENGINE OIL DILUTION RATIO

%

—

MEASURE AIR FLOW

kg/h

Intake air flow rate computed from the mass air flow sensor 
signal is displayed.

RAIL PRESSURE

bar

Fuel rail pressure is displayed.

RAIL PRES SET

bar

Target fuel rail pressure is displayed.

TEMP. UPSTREAM OF PF

°

C or 

°

F

Exhaust gas temperature before DPF computed from the 
upstream DPF temperature sensor.

FUEL FLOW S/V CURRENT

mA

Current value of fuel flow actuator is displayed.

LAST OFF/V CLOSE

%

Inlet throttle valve offset - last closed learning

IN FLAP ABSO POSI

%

Raw value of the position in percent of the sensor supply 
voltage

FIRST OFF/V OPEN

%

Inlet throttle valve offset - first opened learning

FIRST OFF/V CLOSE

%

Inlet throttle valve offset - first closed learning

LAST OFF/V OPEN

%

Inlet throttle valve offset - last opened learning

REGEN MALFNC

—

Indicates the number of DPF regeneration failures since 
the last success.

TEMP. UPSTRM OF CAT CNV

°

C or 

°

F

—

FLOW GAS IN DPF

m3/h

Flow of gas inside the DPF is displayed.

AIR FLOW REFERENCE

mg/cp

—

ENGINE OIL TEMP SENSOR

—

—

ROUGH TC PRESS

mbar

—

EGR LOW PRESSURE POSI-
TION

%

—

ENGINE TORQUE

Nm

—

POST INJECTION FLOW 1

mg/cp

—

SOOT IN P/FLT

g

Soot mass in the DPF is displayed.

EXHAUST SYSTEM FLOW

g/s

Exhaust gas air mass flow for estimation of downstream 
pressure and temperature models

P/FLT DIFF. PRS

hPa

Differential exhaust gas pressure before/after DPF is dis-
played. 

EXHAUST AIR FLAP OFFSET

%

—

PART.FILTER UPSTREAM 
TEMP SENSOR VOLTAGE

mV

Upstream DPF Temperature Sensor signal voltage is dis-
played.

EXHAUST AIR VALVE POSI-
TION SENSOR VOLTAGE

mV

—

EGR VALVE FIRST OFFSET

%

EGR valve offset - first learning

LAST EGR VALVE OFFSET

%

EGR valve offset - last learning

POTN VAL EGR VALVE CLSD

%

Absolute position in percent of the sensor supply voltage

HP EGR VALV POS SETPOINT

—

—

FUEL TEMPERATURE

°

C or 

°

F

Fuel temperature computed from the fuel temperature sen-
sor is displayed.

PARTICLE FILTER DIFF. PRES-
SURE CORRECTION

hpa

—

MANIFOLD PRESSURE

mbar

Intake manifold pressure computed from the TC boost sen-
sor is displayed.

RAIL PRESS SEN VOLT

mV

—

LOW PRESSURE EGR AIR 
TEMPERATURE

°

C or 

°

F

—

Monitor item

Unit

Description

Remarks

EC-882

< SYSTEM DESCRIPTION >

[R9M]

DIAGNOSIS SYSTEM (ECM)

LOW PRESSURE EGR VALVE 
FIRST OFFSET

%

—

PL PTNMR T1 V

mV

Accelerator pedal position sensor 1 signal voltage is dis-
played.

PL PTNMR T2 V

mV

Accelerator pedal position sensor 2 signal voltage is dis-
played.

ACCELERATOR PEDAL POSI-
TION

—

Accelerator pedal position is displayed.

RAIL PRESS LOOP VAR

bar

—

EGR POTENTIOMETER VOLT-
AGE

mV

—

PF PRS SEN VOLT

mV

—

RV/LV BUTTON VOLTAGE

mV

ASCD/Speed limiter steering switch voltage

INT AIR TEMP SEN D/STRM TC

—

—

DAMPER VALVE SEN VOLT

mV

—

SUPPLY VOLTAGE EXHAUST 
AIR FLAP SENSOR

—

—

REFRIGERANT PRESSURE

bar

Refrigerant pressure is displayed.

DAMPER VALVE UPSTR TEMP

—

—

Cruise control setting

km or mile

The preset ASCD vehicle speed is displayed.

FUEL FLOW

mg/cp

Total fuel flow is displayed.

MILEAGE

km or mile

—

ADDITIONAL INFO FD23

—

—

SEN 1 FEED V

mV

Sensors power supply voltage 1 is displayed.

SEN 2 FEED V

mV

Sensors power supply voltage 2 is displayed.

SEN SUPPLY N-3 VOL

mV

Sensors power supply voltage 3 is displayed.

EGR BYPASS VALV SETPOINT

—

—

VEHICLE SPEED DISPLAYED

km/h or mph

The vehicle speed computed from the vehicle speed signal 
sent from combination meter is displayed.

BOOST PRESS REF VALUE

hPa

The boost pressure (determined by the signal voltage of 
the turbocharger boost sensor) is displayed.

TURBOCHARGING SOLENOID 
VALVE OCR

%

Turbocharger boost control solenoid valve open is dis-
played.

AIR INLET TEMP SEN VOLT

mV

Intake air temperature sensor 1 signal voltage is displayed.

FAULT APPEARANCE 
COUNTER

—

—

DURATION OF RESUME BUT-
TON PRESS

s

Duration of resume button press is displayed.

HEATER PLUG CONTROL

%

Glow plug control PWM command is displayed.

AIR INLET/F REL POS

%

Throttle opening angle is displayed.

EGR POSITION

%

EGR position is displayed.

EGR VALVE OPENING REFER-
ENCE

%

High pressure EGR volume control valve opening refer-
ence is displayed.

EGR VALVE CONTROL

%

High pressure EGR volume control valve PWM command 
is displayed.

RFRG TEMP PRESS SEN VOLT

V

—

DMPR VLV SET POS

%

Throttle opening angle is displayed.

EST. AIR FLOW

mg/cp

Estimated air flow is displayed

Monitor item

Unit

Description

Remarks

DIAGNOSIS SYSTEM (ECM)

EC-883

< SYSTEM DESCRIPTION >

[R9M]

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EC

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O

ENGINE TORQUE REFER-
ENCE VALUE

—

—

TBN UPSTR PRS SEN VOLT

mV

Exhaust gas pressure sensor 1 signal voltage is displayed.

MAX PERMISSIBLE SPEED

km/h or mph

—

ALTERNATOR LOAD

%

Alternator load is displayed.

INLET AIR FLOW

mg/cp

The inlet air flow (determined by the signal voltage of the 
mass air flow sensor) is displayed.

ADDITIONAL INFO FD2E

—

—

INLET/F SEN SUPPLY VOLT

mV

—

EGR LOW PRESSURE OCR

%

—

ALTERNATOR POWER

W

Alternator power

EGR SEN SUPPLY VOLT

mV

—

ADDITIONAL INFO FD24

—

—

BR-ACCL PDL INCONSISTNCY

—

—

OXYGEN RATE

—

—

ADDITIONAL INFORMATION 
24F3

°

C or 

°

F

—

ADDITIONAL INFO 2813

°

Crk

—

ADDITIONAL INFO FD47

mV

—

TBN UPSTR TEMP SETP

°

C or 

°

F

—

POST INJECTION FLOW

mg/cp

—

OIL DILUTION INFORMATION

%

—

ADDITIONAL INFO FD61

—

—

ADDITIONAL INFO FD62

—

—

NUMBER OF STARTING 2

—

—

AIR REG CUT-OFF CNDITNS

—

—

NUMBER OF STARTING 1

—

—

ADDITIONAL INFO FDE1

—

—

ADDITIONAL INFO FDE2

—

—

ADDITIONAL INFO FDE3

—

—

NUMBER OF STARTING 3

—

—

ADDITIONAL INFO FDE6

hpa

—

ADDITIONAL INFO FDE7

—

—

ADDITIONAL INFO FDE8

mV

—

FLOW RGLTR CRNT REF VAL

mA

—

ADDITIONAL INFO FDEB

—

—

ADDITIONAL INFO FDEC

—

—

ADDITIONAL INFO FDED

—

—

ADDITIONAL INFO FDEE

—

—

ADDITIONAL INFO FDEF

—

—

ADDITIONAL INFO FDF0

hpa

—

NUMBER OF STARTING 4

—

—

GROSS INLET MANIFOLD 
PRESSURE

hpa

—

ADDITIONAL INFO FD2D

—

—

ADDITIONAL INFO FD2F

°

C or 

°

F

—

Monitor item

Unit

Description

Remarks

EC-884

< SYSTEM DESCRIPTION >

[R9M]

DIAGNOSIS SYSTEM (ECM)

DURATION OF + BUTTON 
PRESS

s

Duration of SET/+ button press is displayed.

EXHAUST FLAP POSITION 
SETPOINT

%

—

EXHAUST AIR FLAP OCR

%

—

FIRST OFFSET OF THE EX-
HAUST AIR FLAP OPEN

%

—

EXHAUST FLAP ABSOLUTE 
POSITION

%

—

LOW PRESSURE EGR VALVE 
SUPPLY VOLTAGE

mV

—

LOW PRESSURE EGR POSI-
TION REFERENCE VALUE

%

—

EXH THROTTLE POSITION

%

Exhaust throttle opening rate is displayed.

DURATION OF - BUTTON 
PRESS

s

Duration of SET/- button press is displayed.

DURATION OF SUSPEND BUT-
TON PRESS

s

Duration of suspend button press is displayed.

NUMBER OF ABNORMAL CC/
SL TRANSITIONS

—

Maximum value of blocked button detection counter

SOOT AFTER REGEN

G

—

FAST IDLE SPEED

rpm

—

MAXIMUM VEHICLE SPEED

km/h or mph

—

ADDITIONAL INFO FD5A

—

—

ADDITIONAL INFO FD22

—

—

FIRST OFFSET OF THE 
CLOSED EXHAUST FLAP

%

—

LAST OFFSET OF CLOSED 
LOW PRESSURE EGR

%

—

ADDITIONAL INFO FD25

—

—

ADDITIONAL INFO FD26

—

—

EXH PRESS UPSTREAM DPF

mbar

—

BRAKE CNT 1 DURATION

S

—

BRAKE CNT 2 DURATION

S

—

A/F SENSOR HEATER DUTY

—

—

VEHICLE SPEED SENSOR

km/h or mph

—

DPF PRESS SENSOR OFFSET

mbar

—

ADDITIONAL INFORMATION 
FDE5

—

—

ADDITIONAL INFO FD9C

°

C or 

°

F

—

ADDITIONAL INFO FD9D

—

—

ADDITIONAL INFO FDE6

—

—

PRS UPSTR OF TBN

mbar

—

TBN UPSTR TMP SEN VOLT

V

—

INT/M RUN VLV OPEN ANGLE

%

—

INT/M RUNNER VLV SETPOINT

%

—

INT/MANI RUNNER VALVE REQ

%

—

IN/M RUN/V LEARN VAL (LAST)

%

—

Monitor item

Unit

Description

Remarks